From e96b27a0ec639a79b1282ab67bb021e0eeb9aa51 Mon Sep 17 00:00:00 2001
From: Jon TURNEY <jon.turney@dronecode.org.uk>
Date: Thu, 5 Jun 2014 15:05:46 +0100
Subject: Fix opening htmlhelp when run without Administrator privileges.

Use cygwin_internal(CW_SYNC_WINENV) to populate the Win32 environment, so that
HtmlHelp() will try to create temporary files in a suitable location. rather
than falling back to %WINDIR%, which will fail without Adminstrator privileges.
---
 main.cc | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/main.cc b/main.cc
index cfaba0d..d343536 100644
--- a/main.cc
+++ b/main.cc
@@ -839,6 +839,12 @@ void usage(void)
 
 int main(int argc, char **argv)
 {
+    // It seems that HtmlHelp() may need to create a temporary file using
+    // GetTempPath().  Create a full Win32 environment, so that it can find a
+    // suitable location, rather than falling back to %WINDIR%, which will fail
+    // if we don't have Adminstrator privileges.
+    cygwin_internal(CW_SYNC_WINENV);
+
     try {
         InitCommonControls();
         CMyWizard dialog;
-- 
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